Comment We Developed a Solution for This: The Egg (Score 1) 115
Check out The Egg (http://www.eggcyte.com ).
We specifically had this usage in mind when we developed it: a way for families to PRIVATELY share photos, videos, that is EASY for all to use. You can put your stuff on your Egg (a handheld personal cloud device with up to 256GB of storage) and your kids will be able to access it using iOS or Android apps we've developed. Contact me if you'd like more information - we've got 'chat' on our website. Or info@eggcyte.com.